Make Your Own Pipe Branch Templates

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Make Your Own Pipe Branch Templates

Postby Bushy » Mon Apr 15, 2013 6:48 pm

This is a handy skill to know and easy to do. Hopefully I can make it look as easy as it is. I am making here a 3" to 4" branch.
For the purpose of this post I am just making a paper template, but you can make a template with any suitable material. Plastics, cardboard or thin steel sheet are great because you can keep them for future use.
To start you will need a piece of A3 or bigger size paper. I have used a piece of butchers paper here On this you need a line through the center and a line square to this down the bottom.
2013-04-15_09-42-21_460.jpg

On your centre line, draw two circles.
2013-04-15_09-47-22_174.jpg

The top circle is 4" and the bottom cicle is 3". Place a line square to centre through your branch circle. With your compass set at the same radius as your branch circle (1.5")
bisect your cicle like this.
2013-04-15_09-48-50_56.jpg
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Re: Make Your Own Pipe Branch Templates

Postby Bushy » Mon Apr 15, 2013 7:04 pm

Then place lines parallel to the centre line through these points.
2013-04-15_09-52-59_171.jpg

Halfway already.
Now, the diameter of 3" is 76.2mm. Times this by 3.1416 =239.4mm. Note that you need to take into account the thickness of your template material. ie 1mm thick cardboard will make the diameter 77.2mm. Divide your circumference by 12=19.95mm.
Measure this out along your bottom line like this. I use a calculator and cumulatively add from centre. Then number your points as shown.
2013-04-15_10-29-20_445.jpg

Pick up yr trusty compass and transpose heights from the top part to the bottom part.
2013-04-15_13-28-11_46.jpg

Follow the series of numbers.
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Re: Make Your Own Pipe Branch Templates

Postby Bushy » Mon Apr 15, 2013 7:11 pm

2013-04-15_13-29-23_882.jpg

And you will end up with this
2013-04-15_13-31-02_195.jpg

Best thing for the next bit is another set of hands and a flexible steel rule. Ore you can use fencing wire
2013-04-15_13-36-06_923.jpg

Just follow the flow and it'll come out how you need.
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Re: Make Your Own Pipe Branch Templates

Postby Bushy » Mon Apr 15, 2013 7:19 pm

2013-04-15_13-37-51_860.jpg

Cut the bugger out
2013-04-15_13-46-41_577.jpg

And hey presto! Template
2013-04-15_13-43-37_734.jpg


Hopefully this all in english.

Happy building

Bushy
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Re: Make Your Own Pipe Branch Templates

Postby googe » Mon Apr 15, 2013 7:28 pm

You little ripper bushy :handgestures-thumbupleft: was just bugging a boilie at work to show me, don't need to now!!. Thanks heaps for this, will be giving it a go on the weekend :dance: . This site has needed a good tutorial like this, I couldn't understand most online ones.

Cheers
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Re: Make Your Own Pipe Branch Templates

Postby Bushy » Mon Apr 15, 2013 8:13 pm

My pleasure Googe :handgestures-thumbupleft:
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Re: Make Your Own Pipe Branch Templates

Postby MacStill » Mon Apr 15, 2013 9:32 pm

Hey all,

A lot of effort goes into posting tech threads like this, I've cleaned this one up & "everyone" who is researching these subjects appreciates a nice clean thread uncluttered from off topic comments.

If you have a question about the topic please ask, if not then please help us by keeping these topics relatively clean.

We thank you for your understanding & cooperation :handgestures-thumbupleft:

Cheers.
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Re: Make Your Own Pipe Branch Templates

Postby googe » Wed Apr 17, 2013 12:28 pm

Hey bushy, what's the idea length of the 3' when it's cut out?. That make.sense?. Thanks mate.
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Re: Make Your Own Pipe Branch Templates

Postby tickle » Sat Jul 27, 2013 9:21 pm

Hey bushy!
when making the circles do you need to make them to the OD of the tubing? I know its been said that aussi pipe is smaller than American pipe (insert tasteless joke here :teasing-neener: ) we go by ID, ie 4" is 4 1/8" OD
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Re: Make Your Own Pipe Branch Templates

Postby Bushy » Sun Jul 28, 2013 8:12 am

Hey Tickle,

Yeah and we go by the OD for sizes. But metaphorically you only beat us by the skin of our dicks. Which isn't much :smile:
Back on topic though, yes you use the outside diameter for the sizes. Don't forget to take into account the thickness of your template material or you will come up short.

Bushy
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Re: Make Your Own Pipe Branch Templates

Postby tickle » Sun Jul 28, 2013 9:06 am

:laughing-rolling:

Ok, thanks for clearing that up. About the pipe too! :laughing-rolling:
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